Conference proceedings - Zbornik Radova[1].pdf - Univerzitet u ...

oth preparations on growth parameters of aboveground part is moremarked as a result of the root system developmentFig.1 Course of average height, diameter and losses in beechplantations treated with soil conditioner BactoFil ® B andSTOCKOSORB ® in the 1 st up to the 3 rd year at experimental plot“Čadečka I”Sample of the plants of all evaluated tree species (spruce, firand beech) had adequately developed root system as well as stemwith aboveground part. Deformation of the root system appeared inone half of the plants. But we could observe similar deformationsalso in plants from natural regeneration (due to skeletal character ofthe site). Also damage to the surface of roots was more marked forplants planted out artificially. This damage is a good access forpathogenic fungi. Discolouration of needles in the samples of plantsfrom artificial regeneration was adequate, while yellowing appearedonly in one spruce sample from natural regeneration.From each sample (plant) a part of root system and part of root collarwere taken, which were cultivated in standard way in sweet wortagar at room temperature.Presence of pathogenic fungi, Armillaria sp. andHeterobasidion sp., usually occurring in this locality, was notconfirmed in any observed sample of plants from artificialregeneration. Trichoderma sp., Verticilium sp. and Fusarium sp.occurred most frequently during cultivation. Trichoderma sp. is afungus that occurs commonly in soil as saprophyte but it may move~ 270 ~